Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37499

Turn hydraulic line pressure into the shoe-to-drum clamping force that stops your truck with the Dorman - First Stop Drum Brake Wheel Cylinder W37499. Mounted at the rear drum brakes, it uses internal pistons and cups to push the brake shoes outward against the drum when you press the pedal. It drops in as a direct-fit replacement for the 1978-1979 Nissan 620 (All), which uses two cylinders per vehicle — this listing is for one.

Features:

• Aluminum body: machined with a 0.625 in bore.
• EPDM rubber cups and boots: made from high-quality EPDM for long-lasting sealing.
• Surface-tested bore: the cylinder bore is surface-tested for an optimum sealing surface for the pressure cups.
• M10 x 1.0 inlet thread: 10 mm thread diameter, 1.0 pitch.

Replacing the wheel cylinder while servicing the drum brakes is a quick, cost-effective way to keep the hydraulic side working properly. A bleeder screw and bleeder screw cap are not included — consult the vehicle service information for the correct parts and bleeding procedure. If a leaking or seized wheel cylinder is the cause of a spongy pedal, fluid on the backing plate, or uneven rear braking, this replaces it; diagnose the cause before ordering. Country of origin: China.

Interchange: 18E171 · 784-04303 · 78404303 · 84-04303 · 8404303 · W906485 · 101-1150 · 1011150 · W-51303 · W51303 · 072-6752 · 0726752 · 33820 · 134.42303 · 135.42303 · WC254910 · 375-67023 · 37567023 · 44100B6000 · WC37499 · F100938 · WC100938. Manufacturer part number W37499.